Troubleshooting Vacuflush Marine Toiets.

Another very common problem after time is that the vacuum pump will run for no aparent reason and then shut off. My first question is always, "does the water in the toilet stay or slowly disapear & do you hear any hissing noises?" If the water does slowly disappear and/or a sucking or hissing noise is heard at the toilet then the bowl seal is bad. This is easy to replace. When you get your kit at (www.marinediscounters.com) there is very good instructions on how to replace the Vacuflush bowl seal. The large hose clamp at the base of the bowl should be loosened and the 2 1/2 rings set aside. Then lift the entire bowl up off the base. Remove the old bowl seal. The new bowl seal is a 2 seal kit. Be sure the thin tephlon seal goes down first and is installed properly. There is a cut out notch in the seal, there is a nub sticking up on the base of the toilet. Be sure these two fit together AND that the teflon seal says "this side up". Then install the second ring in the same manner. The second ring doesn't matter which side is up. NOW, at this point I always replace the flush ball when I replace the bowl seal because they wear together. If there is a scratch or something on the face or leading edge of the flush ball it will prematurly wear out your new seal. Once again there are good directions for replacing the flush ball and shft. It is however, trickier than the bowl seal replacement. To much for me to try and type hear. Reassemble your toilet is simply the reverse of all we have explained here. Do yourself a favor , after the bowl is back in lace and you are just ready to tighten the large hose clamp, open the lid and make sure the flush ball is centered in the bowl. Now tighten the large hose clamp and you are done. We do offer bench rebuilding if these precedures are not something you want to do.